baber/WOPTO huggingface dataset:
Patent GB-550416-A (GB)
Title: Improvements in comparators
IPC: G01B11/00
Filed: 1941-06-03
Abstract: 550,416. Comparators. SMITH, Ltd., C. F., and SMITH, C. F. June 3, 1941, Nos. 7038 and 14223. [Class 106 (ii)] The indicating mechanism has two stages of multiplication one by mechanical leverage and one by an optical lever or its equivalent, in which both stages of leverage are accommodated in an elongated box having a projection screen with a feeler pin near it at one end and transfer means between the mechanical and optical leverages at the other end. A bed plate 1 supports a massive column 2 with a coarse screw adjustment for height and carrying the comparator mechanism 7. The bed plate also carries an adjustable table for the work. The front of the box 7 has a projection screen 8 with knob 9. A lever 13 is pivoted by a spring strip 12 to a bracket 11 at the front of the casing and projects rearwardly. A wire 14 fixed at one end to the box projects through a hole in about the centre of the lever and forms a flexible limit stop. At the rear end of the lever a horizontal blade 15 extends between a projection lens 16 and a condenser 17 for a source of light 10. An image of the blade 15 is projected on to the screen. Two adjustable shutters 18, 18 can be clamped in any position to mark the limits at their adjacent ends. A feeler rod 20 slides in a casing 19 and carries a cap 22 embracing the end of the casing, holes in which are provided with springs 23 to press the rod down towards the work a collar 24 at the upper end limiting this movement. A screw 25 is passed through a hole in the lever and into the feeler rod so that the latter is pulled down against the tension of the cross-wire 14. The lever may be shortened to about half its length and engage another pivoted lever to give two stages of mechanical amplification. In an alternative construction, the lever is made to tilt a reflecting prism on to which is projected the image of a graticule arranged between the condenser and the projecting lens.
Patent GB-589890-A (GB)
Title: A multiple tray stand
IPC: A47G19/08
Filed: 1945-03-22
Abstract: 589,890. Stands. MILLER, A. E., and FAY, H. March 22, 1945, No. 7220. [Class 52 (iii)] A metal or plastic stand which may also be used as a bedside table comprises a number of trays 1 pivotally mounted at the top of a vertical stem and adapted to be opened out fanwise or closed together, their relative angular separation being limited by balls 5 which are disposed within arcuate slots in the said trays. The stem is preferably of telescopic construction, comprising inner and outer tubes 10, 2, respectively, and the inner tube 10 is fitted with a distending coil spring 11 which frictionally engages the outer tube'2, while the upper end of this outer tube is provided with a spring 13 which is coiled tightly round the inner tube 10 and is released by' finger pressure on the eyes 14 to permit the inner tube 10 to be adjusted in the outer tube 2. An intermediate tray 15 may be pivoted on the tube 2 and secured by a spring 13a similar to the spring 13, and may be used to engage under the bed frame when the stand is used as a bedside table.
Patent GB-1102293-A (GB)
Title: Apparatus for conveying textile articles
Inventor: VALENTINE NORMAN STANLEY
IPC: B65G53/66
Filed: 1965-02-19
Abstract: 1,102,293. Pneumatic conveyers. POLYMARK Ltd. 11 Feb., 1966 [19 Feb., 1965], No. 7248/65. Heading B8A. In a pneumatic conveyer for textile articles in a laundry in which the articles are delivered to a washing- machine 7 or to selected outlets 9 in a distributer unit 8 controlled by a keyboard 11, the articles are fed into the duct D through a Venturi device. As shown, air is blown through the duct D by a blower 19 and articles are fed by an endless belt conveyer 23 to an opening 21 in the duct. On the upstream side of the opening 21 there is provided a deflector member 22 for restricting the cross-sectional flow area within the duct and to produce a reduction in pressure adjacent the opening 21. The deflector member may be a fixed plate 22 as shown or, alternatively, the conveyer belt or the base of a shoot may be extended into the duct. A guide plate 25 is provided downstream of the opening 21.
Patent GB-661293-A (GB)
Title: Transmission gearing for internal-combustion engine power plant
Inventor: ITT HENRY EDWARD MERR
IPC: F16H3/14
Filed: 1949-03-17
Abstract: 661,293. Driving-gear. FELL DEVELOPMENTS. Ltd. March 17, 1949, No. 7285/49. 'Class 7(ii) In.a gear train for transmitting to the two actuating shafts, (n o t shown), such as the  axles of a railway locomotive, the torque from the final planet carrier of a power plant (not shown), of the kind comprising at least one unit which itself consists of two supercharged c o m -, pression - ignition internal - combustion engines each of which drives a sun wheel of a differential gear, each sun wheel being subject to the action of a unidirectional device which allows the wheel to be driven by its associated engine in one direction of rotation but not in the other, and the output of the unit being taken from the planet carrier so that the output torque of the plant is unidirectional, two gears 13 and 14 are provided having the same number of teeth as each other and keyed, respectively, to two inter-. mediate shafts 9 which, when the train is in use drive the actuating shafts, an idler gear 15 engaging both the gears 13 and 14, which latter do not engage each other, two intermediate gears 5 and 6 having the same number of teeth as each other and mounted, respectively, on the intermediate shaft 9, each intermediate gear having associated therewith a clutch device, such as the toothed member 17 that is splined to one of the shafts 9 which in the disengaged position allows the intermediate gear to rotate independently and in the engaged position locks the gear to its shaft, and means, for example, arm 20, for actuating the clutches, in such a manner that only one can be engaged at a time, the intermediate gears being always in engagement with each other and one only of them engaging, at least when the gear is in operation, a gear fixed to or driven by the final planet carrier. The engagement of one clutch or the other thereby allows both actuating shafts to be driven in forward or reverse directions. Specification 628,448 is referred to.
Patent GB-1526091-A (GB)
Title: Display apparatus
IPC: G06F3/038
Filed: 1975-02-21
Abstract: 1526091 Control of displays DATA RECORDING INSTRUMENT CO Ltd 19 Feb 1976 [21 Feb 1975 (2)] 7290/75 and 7298/75 Heading G4H  An interactive display comprises an array of discrete display elements 300 each producing an optical output in response to a drive input, labelling giving each element an independent significance, means 101 for storing a plurality of bits each associated with a different element 300, means 140, &c. responsive to the values of the stored bits for generating and supplying to each element as its drive input either a first or a second time-varying waveform, depending on the value of the stored bit, to cause the element to be in first or second visually distinct display states, both waveforms containing a signal identifying that element by its timing, sensing means 70 movable by an operator over the array to sense light from a selected element, and means 202 responsive to means 70 and capable of inverting the value of the associated bit. Elements 300 are LEDs (they may be liquid crystals) and means 70 is a phototransistor in a light pen 60. Means 101 is a recirculating shift register storing a 1(0) if the corresponding element is to be on (off), e.g. b, Fig. 3. The bits in register 101 are normally recirculated via gating circuit 202, Fig. 5, under the control of an oscillator 150 whose pulses a also control row and column addressing circuitry 170-280 and a pulse generator 160 whose output c is combined with the shift register output b in OR gate 140 to give an enabling pulse train 250 (e.g. d) containing long and short pulses for elements which are to be on and off respectively. To change the state of an element, a bistable 100 is set in the appropriate state and light pen 60 is placed on the diode. The light pen output blocks gate 450 at the appropriate moment so that a pulse is added to or removed from the circulated pulse train 30 via gate 430. In a second embodiment (Fig. 6, not shown) the arrangement of Fig. 2 is modified to cope with displays having large numbers of diodes by introducing extra energizing pulses in the waveform applied to each bit diode. The labelling of the diodes is effected by means of an interchangeable partially transparent cardboard overlay (Figs. 8 and 9, not shown) which enables the display to be used with a mini-computer for information retrieval from microfilm or a disc file.
Patent GB-825459-A (GB)
Title: Improvements relating to liquid metal pumps
Inventor: BLAKE LESLIE REGINALD
IPC: H02K44/04
Filed: 1956-03-08
Abstract: 825,459. Dynamo-electric machines &c. BRITISH THOMSON-HOUSTON CO. Ltd. March 7, 1957 [March 8, 1956], No. 7308/56. Class 35. An A.C. interaction pump in which current is passed through the liquid between electrodes on either side of the duct as described in Specification 794,048, is provided with a core having two parallel circuits, one 7, 9 passing flux through the duct and another, 4, carrying a plurality of separate current-generating single-loop windings whose ends are connected to opposite sides respectively of the duct. The return current is passed through pole-face slots 11, 12 to reduce flux distortion. The exciting winding may be mounted on limbs 1, 2.
Patent GB-139039-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B60T13/36
Filed: 1919-03-24
Abstract: 139,039. Westinghouse Brake Co., (Westinghouse Air Brake Co.). March 24, 1919. Fluid-pressure. - In fluid-pressure brakes controlled either electrically or by straight air, a valve 8 is used to disconnect the brake cylinder 6 and the straight-air pipe 3 when the brakes are electrically applied. In an electric operation, the release valve 16 is closed and the pilot valve 18 opened, and fluid pressure from the main reservoir 7 through pipe 13 operates the valve 19, so that fluid passes through a passage 35 to piston chamber 20. Piston 21 is then moved to the position shown, when the straight-air pipe 3 is vented through passage 39, and the reservoir 7 is connected through pipe 34, emergency valve 1, and pipe 30 to cylinder 6. To release the brakes, valve 16 is opened whereby fluid is vented from cylinder 6 through passage 42. When a straight-air application is made, pressure in chamber 22 moves piston 21, so that the pipe 3 is connected to pipe 34 and cylinder 6, and the electric valve device 5 is disconnected therefrom and vented through passage 39. The valve 1 is connected to the emergency brake-pipe 2, as shown.
Patent GB-215898-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B25/00
Filed: 1923-03-14
Abstract: 215,898. Thompson, T. W. March 14, 1923. Two-stroke-cycle engines. - Combustible mixture is compressed in the space d, and in the crank case v, of a pump a mounted between two power cylinders b, c, the pistons of all three cylinders being connected to a common crankshaft. The combustible mixture is admitted to the pump spaces through a common piston-controlled port w and is transferred to the cylinders through passages a<1>, d<1> leading to piston-controlled terminal, ports y, c<1>. Air, admitted through ports p is compressed in the crank-cases i, m, and is transferred to the cylinder through passages q and ports r. Exhaust is effected through ports e', f<1>.
Patent GB-181115-A (GB)
Title: Improvements in automatic telephone systems
IPC: H04M3/52
Filed: 1921-03-07
Abstract: 181,115. Relay Automatic Telephone Co., Ltd., and Davis, F. W. March 7, 1921. Automatic and semi-automatic exchange systems and apparatus.-A subscriber calling a " dead " number or level, or a line in which a fault has developed, is given a distinctive tone signal different from the ordinary busy tone or is connected to a manual operator, this operation being brought about as a direct result of the line or level being " dead," and not by connecting the line or level to special apparatus. The invention may also be applied to a connector which, according to the potential on the test contact of a wanted line, either completes a through talking connection, or transmits over the calling line one of two distinctive tone signals, as determined by the nature of the line engaging the wanted line. The Figure shows the invention applied to a connector of the Strowger type, each line terminating therein being either at negative potential if free, at earth potential if engaged, or entirely disconnected if " dead " or unavailable. The switch is operated in the usual manner to select a wanted line, and if the latter is free, on the relapse of the series relay D, the private magnet PM de-energizes and drives the side switch to its third position, in which a relay PS is energized in a circuit 7, disconnecting the relay NU and causing the called subscriber to be rung in known manner over a circurt 10. If the wanted line is busy, on the relapse of the relay D a circuit 16 is completed for the busy relay F and private magnet PM (previously energized in the circuit 5), and busy tone is sent to the calling subscriber over the circuit 18. In the event of the wanted line being " dead " or unavailable, when the relay D falls away, the private magnet de-energizes, and the side switch moves to its third position as in the case of a free call, but the previously-mentioned circuit 7 for the relay PS is not completed, and the relay NU responds and applies a distinctive tone to the calling subscriber over a circuit 20. In a modification a point OP in the calling line is connected to an additional armature of the relay NU similar to armature b, these armatures being arranged to extend the calling line to an operator's pesition.
Patent GB-222770-A (GB)
Title: Improvements in centrifugal or the like pumps
IPC: F04D29/16
Filed: 1924-03-22
Abstract: 222,770. Weir, Ltd., G. & J., and Mc- Cowatt, W. March 22, 1924. Leakage-preventing devices; wear, preventing and adjusting for.-The impeller b of a centrifugal pump is provided with a steadying and packing ring d having one or more cylindrical bearing surfaces v and two or more restricted end-clearances u adjustable by hand through which endclearances leakage fluid flows radially. The steadying and packing ring d is adjusted axially by screwing a bush e in which the ring d is fixed. The steadying and packing ring d may be fitted at either side of the impeller. Specification 100,858 is referred to.
Patent GB-1363983-A (GB)
Title: Level
IPC: G01C9/28
Filed: 1972-02-17
Abstract: 1363983 Spirit levels D E WRIGHT 17 Feb 1972 [17 Feb 1971] 7420/72 Heading G1F A level comprising a level vial 8 mounted in an opening of a frame 1 having working surfaces 3 and 3' is provided with a cover member 10 having lips 13, 14 for engaging the vial 8 in the opening and maintaining it at a predetermined angle relative to the working surfaces 3 and 3', the cover member allowing the vial to be observed from more than one direction. As shown, the vial 8 which may have a body of plastics or glass is mounted in a web section 4 of a frame which is of I-shaped cross-section and made of aluminium and is retained with its ends engaging notches (7) on opposite sides of a vial seating opening (6) Fig.3 (not shown) by a pair of co-operating cover members connected together by screws 30 on opposite sides of the web section 4. Each cover member has a transparent wall and a cut-out portion 15 which, in co-operating with a similar cut-out portion in the other cover member, provides a slot through which the vial can be viewed from an opening in the working surface 3 of the frame.
Patent GB-1366809-A (GB)
Title: Measuring apparatus
IPC: G01F23/20
Filed: 1972-02-17
Abstract: 1366809 Measuring weight electrically PORTASILO RESEARCH Ltd 25 Jan 1973 [17 Feb 1972] 7475/72 Heading G1N The weight of material in a silo is determined by measuring the change in length of its legs, using a differential transformer 11 (Fig. 2) whose case and windings are strapped to a leg 1 whilst the core 25 rests on the extension 22 of the upper end of an unloaded rod 2 strapped to the silo leg 1 at its lower extremity 18 (Fig. 1). The transformer 11 is sealed in a case 3. The silo leg and the rod 2 have the same thermal co-efficient of expansion.
Patent GB-117911-A (GB)
Title: Improvements relating to the Aeration and Carbonisation of Wort and other Liquids in connection with Counter-current Surface Cooling Apparatus.
Inventor: ROBINSON PHILIP
IPC: C12H1/14
Filed: 1917-05-25
Abstract: 117,911. Robinson, P., (trading as Morton & Co., R.). May 25, 1917. Combined aerating and cooling apparatus.- Wort or other liquid is aerated, while being cooled by passage upwards through the enclosed pipes B of a counter-current cooler, preferably of the kind described in Specification 115,652, [Class 99 (i), Pipes and tubes, Joints &c. for], by injecting air, oxygen, or carbon dioxide through nozzles 6, having slots or perforations or formed of wire gauze, in a chamber through which the liquid entering the cooler flows. The outlet end of the cooler is provided with a snifting chamber containing a float 13 which opens a snifting passage 19 when excess of gas accumulates in the chamber and depresses the level of the liquid. The inlet and outlet of the snifting chamber are separated by a raised wall 18, which may be adjustable in height, to separate gas bubbles from the liquid. The inlet chamber and snifting chamber are formed of glass cylinders 1, 9 clamped between end-pieces.
Patent GB-1561395-A (GB)
Title: -lactam antibiotic
IPC: A61P31/04
Filed: 1976-02-26
Abstract: An aqueous solution of a salt of clavulanic acid with the exception of the calcium salt is treated with a cation exchanger resin in the form of the calcium salt. The calcium diclavulanate which is formed is eluted from the exchanger resin, resulting in a solution of calcium diclavulanate which is virtually free of cations other than calcium ions. Calcium diclavulanate dihydrate is allowed to crystallise out of the resulting solution and is isolated in crystalline form. The resulting salt is suitable as active component in pharmaceutical compositions, especially for oral administration.
Patent GB-1391604-A (GB)
Title: Shelf and like supporting structures
IPC: A47B96/14
Filed: 1971-03-23
Abstract: 1391604 Shelving &c. SHOWRAX Ltd 12 June 1972 [23 March 1971] 7622/71 Heading A4B A hollow post 10 for supporting shelf or other brackets is rectangular in cross-section and is provided in one or both pairs of opposite faces with a vertical series of slots 11 to receive the rear ends of the brackets, the post being provided or formed with corner pieces 12 each comprising a pair of mutually perpendicular tongues 12a each lying parallel to an adjacent side of the post to define a groove 13 whereby two facing grooves 13 may receive opposite side edges of a decorative strip 5.
Patent GB-765826-A (GB)
Title: Improved sponge cleaner and wringer
Inventor: JR JOSEPH PALMA
IPC: A47L23/14
Filed: 1955-03-16
Abstract: 765,826. Wringer mops. AMERICANMARIETTA CO. March 16, 1955, No. 7732/55. Class 19 A sponge mop comprises a sponge 10 which is attached to a rod 12 by means - of a retainer plate 11 embedded in it. The rod 12 passes through a handle 13 and has a knob 14 attached to its remote end. The end 16 of the handle 13 is squared and supports a perforated conical wringer 17, which encloses the rear of the sponge 10. The sponge may be wrung, either by forcing the wringer 17 down over it, or by pulling up the plate 11 by means of the knob 14. In a simplified embodiment the knob 14 is omitted, the rod 12 then being fixed to the handle 13.
Patent GB-969666-A (GB)
Title: Hydrophilic particulate polyacrylamide and process of preparing
IPC: C08F20/56
Filed: 1962-02-28
Abstract: Hydrophilic particulate polyacrylamide having a combined acrylamide content of at least 85% by weight containing a hydrophilic polyacrylamide-chromic complex as a water-solubilizing agent is made by subjecting water-soluble monomeric material containing at least 85% of acrylamide to redox polymerization in aqueous medium in the presence of a small amount of a water-soluble chromic salt, until the monomer has polymerized to an alkanol-insoluble state, and precipitating the polymer in particulate form by addition of an alkanol.  Alternatively, a similar product may be made by contacting polyacrylamide with an alkanol-water mixture containing a water-soluble chromic salt, until an effective amount of the salt has reacted with the polymer.  Chromic salts specified are the chloride, acetate, sulphate and a tanning solution. Polymers specified are polyacrylamide, copolymer of acrylamide with acrylic acid, 2-vinyl pyridine diethylaminoethyl acrylate quaternized with methyl chloride, and trimethylvinyl phenyl ammonium chloride, and a copolymer containing 5% of vinylamine units.
Patent GB-791736-A (GB)
Title: Improvements in or relating to pipe couplings
Inventor: WILLIAMS DERRICK JOHN
IPC: F16L37/40
Filed: 1955-03-17
Abstract: 791,736. Pipe couplings. HIGH PRESSURE COMPONENTS, Ltd. Feb. 13, 1956 [March 17, 1955], No. 7846/55. Class 99(1). In a two-part coupling wherein one part 1 incorporates a spring-urged non-return valve 3 and the other part 14 carries a probe 16 for engaging and moving the valve off the seat 5 thereof, the part 14 is provided with an internal annular recess in which is housed an " O " ring 15 for making sealing engagement with the peripheral surface of the part 1. As shown, the coupling part 1 is formed with a conical seating 5, and an external annular groove 22, the valve 3 being axially movable on to the seating by a helical spring 7 encircling the valve stem 8 which is slidable in a ported bearing 9 secured in the part by a circlip 10 ; the conical head 4 of the valve has an annular groove in which is located a sealing ring 6, and the tapered probe 16 is provided with one or more passageways 17, e.g., an axial bore communicating with diametrical holes or slots. A rotatable cap 25 carries two strip springs 24 which project into diametrically-opposite recesses 23 formed in the part 14 and also into the groove 22 of the part 1 when the two parts are engaged ; the springs are located in position by arcuate-shaped retainers 26 secured to the cap. By rotation of the cap 25 through 90 degrees, Fig. 3, the springs are lifted by the part-circular portions of the part 14 intermediate the recesses 23 to allow withdrawal of the part 1 from the part 14. In a modification, the part 14 also incorporates a valve with which the probe is associated, and, to lock the two parts together, a spring clip is provided in the groove 22 of the part 1 for cooperation with an annular groove in the part 14.
Patent GB-570233-A (GB)
Title: Addition agent for caustic alkali electrolytes used in the production of hydrogen and oxygen
IPC: C25B1/04
Filed: 1942-06-09
Abstract: 570,233. Production of hydrogen and oxygen from caustic alkali electrolytes. CONSOLIDATED MINING & SMELTING CO. OF CANADA, Ltd. June 9, 1942, No. 7868. Convention date, June 26, 1941: [Class 41] To reduce the operating voltage of a cell for the production of hydrogen and oxygen by the electrolysis of a caustic alkali electrolyte, a soluble vanadium compound, advantageously vanadium pentoxide, preferably in an amount of 500 milligrams per litre, is added to the electrolyte in the region of the cathode.